The strait that separates the U.S. and Russia is the Bering Strait. This narrow body of water connects the Arctic Ocean to the north and the Bering Sea to the south, separating the two nations by approximately 2.4 miles (3.8 kilometers) at its narrowest point. The strait plays a crucial role in marine biodiversity and migratory patterns for various species. Historically, it has been significant in terms of cultural exchange between the peoples of North America and Asia, particularly through the ancient Bering Land Bridge. Today, the Bering Strait remains a key area for ecological research and geopolitical interests related to shipping routes and climate change.